21287904

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1061}}^1$

素因数の和:1104

約数の個数: 96

約数和(自身を含む): 64229760

約数和(自身を除く): 42941856

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 19, 22, 24, 32, 33, 38, 44, 48, 57, 66, 76, 88, 96, 114, 132, 152, 176, 209, 228, 264, 304, 352, 418, 456, 528, 608, 627, 836, 912, 1056, 1061, 1254, 1672, 1824, 2122, 2508, 3183, 3344, 4244, 5016, 6366, 6688, 8488, 10032, 11671, 12732, 16976, 20064, 20159, 23342, 25464, 33952, 35013, 40318, 46684, 50928, 60477, 70026, 80636, 93368, 101856, 120954, 140052, 161272, 186736, 221749, 241908, 280104, 322544, 373472, 443498, 483816, 560208, 645088, 665247, 886996, 967632, 1120416, 1330494, 1773992, 1935264, 2660988, 3547984, 5321976, 7095968, 10643952, 21287904]

約数ペア:

[(1, 21287904), (2, 10643952), (3, 7095968), (4, 5321976), (6, 3547984), (8, 2660988), (11, 1935264), (12, 1773992), (16, 1330494), (19, 1120416), (22, 967632), (24, 886996), (32, 665247), (33, 645088), (38, 560208), (44, 483816), (48, 443498), (57, 373472), (66, 322544), (76, 280104), (88, 241908), (96, 221749), (114, 186736), (132, 161272), (152, 140052), (176, 120954), (209, 101856), (228, 93368), (264, 80636), (304, 70026), (352, 60477), (418, 50928), (456, 46684), (528, 40318), (608, 35013), (627, 33952), (836, 25464), (912, 23342), (1056, 20159), (1061, 20064), (1254, 16976), (1672, 12732), (1824, 11671), (2122, 10032), (2508, 8488), (3183, 6688), (3344, 6366), (4244, 5016)]